2015 Chevrolet TrailBlazer tire sizes & fitment
Approved tire and wheel sizes for the 2015 Chevrolet TrailBlazer, sourced from manufacturer fitment data and refreshed monthly.
Approved fitments
| Tire size | Rim size | PCD (bolt pattern) | Offset | Load index | Speed rating |
|---|---|---|---|---|---|
| 245/70R16 OEM | 6.5x16 | 6x127 | 33mm | 111 | S |
| 265/60R18 OEM | 7.5x18 | 6x127 | 33mm | 110 | T |
2015 Chevrolet TrailBlazer wheel bolt pattern & specs
| Bolt pattern (PCD) | 6x127 |
|---|---|
| Wheel thread / lug size | M12x1.5 |
| Center bore | 78.3 mm |
| Source | adaptitusa-reference |
Best by use case
Four tires, four jobs
Best all-season
Pirelli
Scorpion all terrain plus
all-season touring, UTQG 600, 50,000-mi warranty
Best budget
Michelin
Defender LTX M/S
Lowest cost per mile in this size; UTQG 800
Best quiet
Michelin
X-Ice snow
71 dB cabin noise (EU label); quietest in this size
Best winter
Michelin
X-Ice snow
Dedicated winter (premium compound); ice/snow grip
See the best tires for the Chevrolet TrailBlazer, ranked by category →
Tire recalls & safety complaints for the Chevrolet TrailBlazer →
Compatible alternative sizes for 245/70R16
Sizes within the ETRTO ±3% overall-diameter safe-fit tolerance. Each row links to the size's own page.
| Alternative size | %Δ OD | Category | Verdict |
|---|---|---|---|
225/65R18 |
0.04% | plus 2 | Safe |
265/60R17 |
0.05% | plus 1 | Safe |
265/55R18 |
-0.09% | plus 2 | Safe |
245/65R17 |
0.12% | plus 1 | Safe |
245/75R15 |
-0.12% | alternative | Safe |
For the full list of alternatives with comfort/handling impact, see 245/70R16 upsize options. To check an arbitrary size pair, use the tire compatibility calculator.
Check a different size against this vehicle
Type any tire size below; we'll compute its overall-diameter delta against the OEM 245/70R16 and verdict using the ETRTO ±3% rule.
Common upgrade paths
- Plus-1: 265/60R17; one rim size up, 0.05% OD change. Sharper steering, mild ride penalty, modest cost premium.
- Plus-2: 225/65R18; two rim sizes up, 0.04% OD change. Noticeable ride penalty, higher pothole risk, meaningful tire-cost premium.
Use the plus-size calculator to evaluate any rim step against the OEM size.
How to choose tires for the 2015 chevrolet TrailBlazer
The 2015 Chevrolet TrailBlazer ships from the factory on 245/70R16 tires mounted on 6.5x16 wheels, with a load index of 111 and a speed rating of S. 2 approved fitments are documented for this model year, allowing some flexibility between performance, comfort, and winter compounds. The Compatible alternative sizes table above lists every safe substitution within the ETRTO ±3% overall-diameter tolerance.
Tire choice on the Chevrolet TrailBlazer comes down to three trade-offs that matter more than brand loyalty: load index (must equal or exceed the OEM number, in this case 111), speed rating (must match or exceed the placard, here S), and UTQG treadwear (higher means longer life, lower usually means stickier rubber). Owners replacing factory tires with the same compound class, for example all-season for all-season, generally see no change in ride characteristics or fuel economy. Switching categories (performance summer to all-season touring, for example) is where the trade-offs show up at the contact patch.
For 2015 Chevrolet TrailBlazer owners considering a plus-size upgrade, the safer option is a Plus-1 step (one rim size up with a 10-point aspect drop and ~10 mm of additional section width). Plus-2 is technically viable on this chassis if the alternative-sizes table lists a Plus-2 candidate within tolerance, but expect a meaningful ride-harshness penalty and a tire-cost premium of 30–60% per tire relative to the OEM fitment. For winter use the recommended pattern is one width step down (e.g. from a 235 to a 225) with the aspect ratio bumped up to preserve overall diameter; narrower tires apply higher contact pressure per square inch on snow, which translates directly into shorter braking distances. The plus-size calculator evaluates any specific rim step against this OEM size.
Before purchasing, verify the tire size on the driver-door placard of your specific 2015 Chevrolet TrailBlazer, since trim levels and option packages can shift the original fitment from what is documented here. The placard reading is the authoritative source per FMVSS 110, and dealers will reference the placard rather than aftermarket catalogs when validating warranty claims.
NHTSA-reported issues for 2015 chevrolet TrailBlazer
Top issue category: Tires (General)
Most reported: Tires (General) (47) · Sidewall (10) · Spare Tire (8) · Tread / Belt (7) · TPMS (4)
Reported across: 2001 – 2022 (10 years)
What owners described
Blowout or sudden deflation is the most common description, in 25% of these reports. Percentages are shares of the 65 reports covering every model year of the Chevrolet TrailBlazer that include a written account; a single report can describe more than one problem, so they do not total 100%.
| Reported problem | This subject | All tire complaints | Relative |
|---|---|---|---|
| Blowout or sudden deflation | 25% | 20% | 1.2× |
| Sidewall failure | 20% | 15% | 1.3× |
| Loss of control, rollover or collision | 15% | 8% | 1.8× |
| Cracking or dry rot | 12% | 9% | 1.3× |
| Tread or belt separation | 8% | 13% | 0.6× |
| Pressure-monitoring (TPMS) fault | 5% | 2% | 1.9× |
Mileage at failure
29 of these reports state an odometer reading. The middle report is at 24,000 miles, with 8 in 10 falling between 2,100 and 95,000 miles.
In owners' own words
Verbatim excerpts from complaints filed with NHTSA about Chevrolet TrailBlazer. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.
GOODYEAR TIRES CRACKING, ALL FOUR TIRES, P245/6517 FORTERA SILENT ARMOR PURCHASED JULY 22, 2010. TIRE IDENTIFICATION: DOT PJ8T 65HR 1910, APPROXIMATE 23,000 MILES, TREAD DEPTH REMAINING 8/32. THESE TIRES ARE CRACKING IN THREADS, CIRCUMFERENCE AND RIM LINE. I HAVE CONTRACTED GOODYEAR CASE #1402275. THEY WILL GIVE ME A TIRE CREDIT OF $182.82, I FEEL THESE SHOULD HAVE BEEN REPLACED FREE OF CHARGE. THERE IS NO ABUSE ON THESE TIRES, WELL MAINTAINED, NO CUPPING. I HAVE MANY PICTURES THAT I WOULD LIKE TO EMAIL. I WILL BE PURCHASING NEW TIRES 06-09-2014.
THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE FUEL SENSOR GAUGE INDICATED THAT THE FUEL TANK WAS HALF FULL WHEN THE VEHICLE SHUT OFF BECAUSE THE FUEL TANK WAS EMPTY. THE VEHICLE WAS TAKEN TO THE DEALER, WHO DIAGNOSED THAT THE FUEL GAUGE SENSOR WAS FAULTY. THE VEHICLE WAS NOT REPAIRED. THE CONTACT ALSO INDICATED THAT THE TIRE AIR SENSOR INDICATED THAT AIR IN THE FRONT DRIVERS SIDE TIRE WAS LOW BUT AFTER INSPECTING THE VEHICLE THE CONTACT DISCOVERED THAT AIR IN THE REAR DRIVERS SIDE TIRE WAS LOW. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 80,000.
THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE VEHICLE IS EQUIPPED WITH MICHELIN LTX M/S TIRES, SIZE P245/65/R17 (NA). THE CONTACT STATED THAT THE TREAD ON ALL FOUR TIRES WAS SEPARATING AND THE OUTSIDE OF THE SIDEWALLS WERE CRACKED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT TIRE DEALER AND THE TIRES WERE REPLACED. THE MANUFACTURER STATED THAT THE TIRES WERE NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13T012000 (TIRES) SINCE THE SIZE OF THE TIRES DID NOT CORRELATE WITH THE RECALL. THE APPROXIMATE VEHICLE FAILURE MILEAGE WAS 66,000 AND THE TIRE FAILURE MILEAGE WAS 24,000. UPDATED 10/23/2014*LJ UPDATED 04/22/2015
THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE, THE TRACTION CONTROL AND THE LOW AIR PRESSURE SENSOR LIGHTS ILLUMINATED. AFTER INSPECTING THE VEHICLE, THE CONTACT DISCOVERED THAT THE FAILURE OCCURRED ALTHOUGH THE AIR PRESSURE IN THE TIRES WAS NORMAL AND THE VEHICLE WAS NOT EXPERIENCING A TRACTION CONTROL ISSUE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED AND THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 95,000. UPDATED 4/16/15
Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.
Frequently asked questions
What size tires fit a 2015 Chevrolet TrailBlazer?
What is the bolt pattern of a 2015 Chevrolet TrailBlazer?
Can I run a different tire size on my 2015 Chevrolet TrailBlazer?
Where can I buy tires for my 2015 Chevrolet TrailBlazer?
What is the recommended tire pressure for the 2015 Chevrolet TrailBlazer?
Can I fit winter tires in a different size on my 2015 Chevrolet TrailBlazer?
How often should I rotate the tires on my 2015 Chevrolet TrailBlazer?
For broader tire questions; replacement timing, UTQG, EV-specific tires, winter swaps; see the tire FAQ.
Sources for this page
- Vehicle owner's manual tire & wheel placard; door-jamb placard on the Chevrolet TrailBlazer is the authoritative source for OEM tire size, load index, and cold-inflation pressure for your specific trim.
- NHTSA SaferCar; recall lookup for the 2015 Chevrolet TrailBlazer.
- ETRTO 2024 Standards Manual §2.3; overall-diameter math used for the alternative-size verdicts above.
- Tire & Rim Association 2025 Yearbook; load-index to maximum-load reference.
Last verified 2026-09-02.